Satellite map of ozone layer northern hemisphere

Satellite map of ozone layer northern hemisphere

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Credit: LABORATORY FOR ATMOSPHERES, NASA GODDARD SPACE FLIGHT CENTER/SCIENCE PHOTO LIBRARY

Caption: Satellite map showing the ozone layer over the northern hemisphere on January 15, 1986. The ozone is most concentrated (red & yellow) in a ring around the Arctic. The black area over the pole is where no data was obtained due to the Arctic night. The 1980 discovery of an annual depletion of the ozone layer over Antarctica - the "ozone hole" - has led to fears that the Arctic may also be affected. Some evidence of Arctic ozone loss was found in 1989. In this map of data obtained by the Nimbus 7 weather satellite, the continents are outlined in white. The colours represent Dobson units, a measure of atmospheric ozone.

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Keywords: arctic, atmosphere, earth science, earth's, nimbus 7 imagery, over northern hemispher, ozone, ozone depletion, ozone hole, pollution, sciences

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